About Me
Hello!
My name is Johnson Liu and I currently work as a mathematics
tutor at Diablo Valley College. I have an interest in topics
related to artificial intelligence (AI) and machine learning (ML).
The projects shown here represent my ongoing efforts to
explore natural language processing, reinforcement learning,
and creative applications of AI. I plan to continue refining
these projects while pursuing graduate studies in related fields.
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Contact:
liujohnson.jl@gmail.com
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Github:
https://github.com/johnson-liu-repo/
AI and ML-Related Projects
Click on the cards to visit the project pages!
Large Language Model Jailbreak Stress Testing Dashboard
Interactive dashboard for stress-testing LLMs: run reproducible jailbreak suites, compare models and mitigations, and visualize success rates, leakage types, and regression trends.
Sentiment Analysis
This project explores how natural language processing can be used to recognise sarcastic intent in informal text. By training neural network models on a dataset of labelled Reddit comments, the goal is to distinguish between sarcastic and sincere statements. In future iterations the scope will expand to general sentiment analysis and even multimodal input (e.g. combining images and text).
Dominion AI
Dominion is a deck-building card game with a complex state space. This project applies reinforcement learning to train bots to play the game efficiently. Key design decisions include whether to use a fixed or dynamic action space and how to structure the Q-learning architecture for the distinct action and buy phases of the game. The work is built on top of the open—source Pyminion engine.
Creative Applications of AI
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Other Creative Projects
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Content Creation
Check out my Youtube channel where I upload gameplay! I am planning on making content around roguelite games.
SCP Wiki Entries
SCP is a collaborative writing project exploring a shared universe of anomalous phenomena, blending science fiction, horror, and mystery through fictional documents, experiments, and stories. This is my contribution to the SCP Wiki and my engagement with the SCP community.
Past Projects
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